$ git clone -n https://src.fedoraproject.org/rpms/boomaga.git /var/lib/mock/f40-build-2335994-59418/root/chroot_tmpdir/scmroot/boomaga
Cloning into '/var/lib/mock/f40-build-2335994-59418/root/chroot_tmpdir/scmroot/boomaga'...
$ git fetch origin 3fbc6fd0646d6722db4a540240996f7670e2bacf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/boomaga
 * [new ref]         3fbc6fd0646d6722db4a540240996f7670e2bacf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3fbc6fd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild